Greven

• Ba-Cu-Hg-O
• Cu-La-O
• Ce-Cu-Nd-O
• Cu-La-O-Sr
• Cl-Cu-O-Sr
• optical properties
• magnetic properties
• electronic and electrical properties
• magnetic transitions
• structural properties
• transitional
• chalcogen
• quaternary
• alkaline
• disordered
• tetragonal
• orthorhombic
• monoclinic